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中1数学 文字と式「積の表し方②」

Authored by N Semba

Mathematics

7th Grade

Used 9+ times

中1数学 文字と式「積の表し方②」
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 y×3×xy\times3\times x  

 y3xy3x  

 y3xy^3x  

3xy

 xy3xy3  

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 y×x×z×1y\times x\times z\times1  

 1xyz1xyz  

 xyzxyz  

 yxz1yxz1  

2xy

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 (ab)×4\left(a-b\right)\times4  

 (ab)4\left(a-b\right)4  

 4(ab)4\left(a-b\right)  

 (ab)4\left(a-b\right)^4  

 4+(ab)4+\left(a-b\right)  

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 6ab36ab^3  

 6×a×a×a×b6\times a\times a\times a\times b  

 a×6×b×b×ba\times6\times b\times b\times b  

 a×b×6×b×ba\times b\times6\times b\times b  

 6×a×b×36\times a\times b\times3  

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 y×x×(1)y\times x\times\left(-1\right)  

 xy-xy  

 1xy-1xy  

 yx1yx-1  

 xy1xy-1  

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 (xy)×a×(3)\left(x-y\right)\times a\times\left(-3\right)  

 (xy)a3\left(x-y\right)a-3  

 3a(xy)-3a\left(x-y\right)  

 3(xy)a-3\left(x-y\right)a  

 (xy)3a\left(x-y\right)-3a  

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 (ab)×23×(ab)×(ab)\left(a-b\right)\times\frac{2}{3}\times\left(a-b\right)\times\left(a-b\right)  

 23(ab)3\frac{2}{3}\left(a-b\right)^3  

 23(ab)3\frac{2}{3}\left(a-b\right)3  

 2(ab)33\frac{2\left(a-b\right)^3}{3}  

 32(ab)3\frac{3}{2}\left(a-b\right)^3  

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